Changeset 4a00bc9 in mainline for uspace/drv/bus/usb/xhci/trb_ring.c

Timestamp:

2018-01-10T13:29:52Z (8 years ago)

Author:

Ondřej Hlavatý <aearsis@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

398a94c

Parents:

f92f6b1

git-author:

Ondřej Hlavatý <aearsis@…> (2018-01-10 13:28:21)

git-committer:

Ondřej Hlavatý <aearsis@…> (2018-01-10 13:29:52)

Message:

xhci: fix errors reported by clang

Asserts were unnecessary, because the transfer type is an enum.
DMAMEM_4GiB is an uintptr_t constant.
There shall be at least one ring segment, and clang cannot infer that.
TRBs shall be 16-byte aligned to take aligned pointers from it.

File:

• uspace/drv/bus/usb/xhci/trb_ring.c (modified) (2 diffs)

uspace/drv/bus/usb/xhci/trb_ring.c

@@ -151 +151 @@
         if (!next_segment)
                 next_segment = list_first(&ring->segments);
+        assert(next_segment);
 
         ring->enqueue_segment = list_get_instance(next_segment, trb_segment_t, segments_link);
@@ -207 +208 @@
         xhci_trb_t *trb = first_trb;
         for (size_t i = 0; i < trbs; ++i, ++trb) {
-                if (trb_generates_interrupt(trb)) {
+                if (phys && trb_generates_interrupt(trb)) {
                         if (*phys)
                                 return ENOTSUP;